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Discontinued
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LH2H Preset Hour Meters

Rating/ Performance

Item Descriptions
Rating Rated operating voltage 24 V DC
Rated power consumption Max. 1.5 W
Rated control output 100 mA 30 V DC
Time counting direction Addition or Subtraction (selectable by front switch)
Measurement time range 0 to 999999.9h/0 to 3999d23.9h (selectable by slide switch on side)
0 to 999h59m59s/0 to 9999h59.9m (selectable by slide switch on side)
Start input Min. input signal width: Min. 30 ms
Reset input Min. input signal width: Min. 30 ms
Input signal .Non-voltage input using contacts or open-collector connection
.Input impedance; when shorted: Max. 1 kΩ, when open: Min. 100 kΩ
.Residual voltage: Max. 2 V
Operation mode Totalizing ON delay, Signal ON delay, Signal flicker, Pulse ON delay
(selectable by front switch)
Display method 7-segment LCD
(Switch between red and green for backlight, and between lit and flashing for time up.)
Power failure emory EEP-ROM (Overwriting times: 105 operations or more)
Time
accuracy
Operating time fluctuation ±0.01% ±50 ms
in case of power on start
±0.01% ±30 ms
in case of input signal start

Rated operating voltage:
85 to 110%
Ambient temperature:
--10 to +55°C /+14 to +131°F
Voltage error
Temperature error
Setting error
Contact arrangement 1 Form A (Open collector)
Electrical life (contact) 107 operations (at rated control voltage)
Electrical Allowable operating voltage range 85 to 110% of rated operating voltage
Break down voltage
(Initial value)
Between input and output: 1,500 V AC, for 1 min.
Insulation resistance
(Initial value)
Between input and output: 100 MΩ (at 500 V DC)
Mechanical Functional vibration resistance 10 to 55 Hz (1 cycle/min), Single amplitude: 0.15 mm (10 min. on 3 axes)
Destructive vibration resistance 10 to 55 Hz (1 cycle/min), Single amplitude: 0.375 mm (1 hr. on 3 axes)
Functional shock resistance Min. 98 m/s2 (4 times on 3 axes)
Destructive shock resistance Min. 294 m/s2 (5 times on 3 axes)
Operating conditions Operation temperature --10 to 55°C/ +14 to +131°F (without frost or dew)
Storage temperature --25 to +65°C/ 13 to +149°F (without frost or dew)
Ambient humidity 35 to 85% RH (non-condensing)
Protective construction IP66 (front panel with mounting bracket and rubber gasket)
*The factory default preset value is set to 0.1.

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